Mexico’s security forces have killed Nemesio Rubén Oseguera Cervantes, known as “El Mencho,” the leader of the powerful Jalisco New Generation Cartel (CJNG), triggering a wave of violence across the country. The operation on February 22, 2026, sent multiple states into lockdown as cartel members retaliated with roadblocks, arson, and clashes with authorities. The takedown of El Mencho, one of the world’s most wanted drug traffickers, underscores the complex challenges Mexico faces in its ongoing struggle against organized crime and the potential for instability even with high-profile arrests.
The immediate aftermath of the operation saw widespread disruption, with armed groups blocking roads in at least a dozen states, from the U.S. Border to tourist destinations like Guadalajara, which is slated to host matches for this summer’s World Cup. Reports indicate vehicles and commercial spaces were set ablaze, and some flights were cancelled. The U.S. Embassy in Mexico issued a shelter-in-place order for citizens in nine states, highlighting the severity of the situation. This response demonstrates the far reach of the CJNG and its ability to project force even in the face of leadership loss.
El Mencho’s death is the most significant elimination of a Mexican kingpin since the capture of Joaquín “El Chapo” Guzmán in 2016, who is currently serving a life sentence in the U.S. After being extradited in 2017. However, as history has shown, removing a cartel leader does not guarantee peace. The current unrest echoes the instability that followed Guzmán’s arrest, with potential for infighting and power struggles within the CJNG. Sandra Pellegrini, a senior Latin America analyst for ACLED, an independent monitoring group on global conflicts, stated that “Leadership removals rarely reduce violence long term,” and often trigger “instability as factions compete for power.”
Operation and Initial Response
The Mexican government reported that Oseguera Cervantes, a former police officer, was wounded during a clash with armed forces in Tapalpa, Jalisco, on Sunday and died although being transported to Mexico City. Six other alleged cartel operatives and three soldiers were also killed during the operation. The violence quickly spread beyond Jalisco, with retaliatory attacks concentrated in several states. The operation was reportedly supported by U.S. Intelligence, provided by a new U.S.-military-led task force focused on mapping Mexican cartels, according to Reuters.
President Claudia Sheinbaum Pardo urged calm on Sunday and announced on Monday that stability had been largely restored, with an estimated 250 roadblocks across 20 states cleared. Mexico’s Secretary of Security and Citizen Protection, Omar Garcia Harfuch, held a press conference at Palacio Nacional in Mexico City on February 23, 2026, to address the wave of violence and outline the government’s response.
The Rise of CJNG and U.S. Involvement
The CJNG, founded in 2009, has rapidly become one of Mexico’s most violent and powerful drug cartels. It is known for its excessive utilize of violence and military-style weaponry, including a 2015 incident where cartel members used a rocket launcher to shoot down a government helicopter. The cartel is believed to operate as far south as Bolivia and is heavily involved in trafficking cocaine, fentanyl, and methamphetamine, as well as other criminal activities like fuel theft, extortion, and migrant smuggling. The U.S. State Department had offered a $15 million reward for information leading to El Mencho’s arrest, a figure reiterated in December 2024, according to The Independent.
Under growing pressure from the United States, Mexico has been conducting one of its most aggressive campaigns against cartels in a decade. President Sheinbaum Pardo’s administration has transferred numerous cartel operatives to the U.S. And, through the end of 2025, reported 37,000 arrests, the seizure of 300 tons of drugs, and the destruction of 1,600 drug laboratories. Meanwhile, former President Donald Trump has threatened to use U.S. Military force against Mexican cartels, claiming they “run” the country.
Looking Ahead
The death of El Mencho represents a significant blow to the CJNG, but the ensuing violence underscores the deeply entrenched nature of organized crime in Mexico. The coming weeks and months will be critical as cartel factions vie for control, potentially leading to further instability. The Mexican government’s ability to maintain order and prevent a full-scale power struggle will be a key test of its security strategy. The situation also highlights the ongoing need for international cooperation, particularly with the United States, to address the root causes of drug trafficking and violence.
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